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	Types of Volcanoes	The Ring of Fire

lateral blast A lateral blast is a volcanic eruption that occurs on the side of a volcano; the energy of the blast is directed horizontally.

latitude Latitude is the angular distance north or south from the equator to a particular location. The equator has a latitude of zero degrees. The north and south poles have a latitude of 90 degrees. The rest of the world is between zero and ninety degrees.

Laurasia Laurasia was the northern supercontinent formed after Pangaea broke up during the Jurassic period. Laurasia included what are now North America, Europe, Asia, Greenland, and Iceland.

lava Lava is molten rock. It usually comes out of erupting volcanoes.

lava bomb A volcanic bomb is a chunk of viscous lava (over 64 mm) that is ejected (thrown) from a volcano. Since they are still viscous when sjected, they often have rounded, aerodynamic shapes. Type of bombs include: breadcrust bombs, ribbon bombs, spindle bombs, spheroidal bombs, and "cow-dung" bombs.

lava dome A lava dome is a dome-shaped mound that is formed around a vent by viscous lava.

liquid Liquid is a phase of matter in which the molecules are close together and can move around slowly.

lithosphere The lithosphere is the solid, rocky, outer part of the Earth consisting of the crust and the upper mantle.

lithospheric plates Llithospheric plates are a series of slabs that make up the Earth's hard outer shell. There are 16 major lithospheric plates that float on softer layers of the Earth's mantle.

Littoral Zone The littoral (intertidal) zone is where the sea meets the land.

loess Loess is a deposit of tiny, windblown particles.

longitude Longitude is the angular distance east or west of the prime meridian (the north-south line that passes through Greenwich, England) to a particular location. Greenwich, England has a latitude of zero degrees. The farther east or west of Greenwich you are, the greater your longitude. Midway Islands (in the Pacific Ocean) have a longitude of 180 degrees (they are on the opposite side of the globe from Greenwich).

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	Types of Volcanoes	The Ring of Fire

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